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is there any legitimate use of blockchains?
(lemmy.ca)
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this post was submitted on 25 Aug 2025
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"Blockchain" as commonly meant as used in cryptocurrencies - no. Only for Bitcoin - all other *coins are scams.
However git can be considered to be based on blockchain so in that sense, absolutely.
That’s really stretching the definition of blockchain.
Blockchain is about providing consensus without relying on a central authority. If there are two variants of the same blockchain, anyone should be able to independently verify which one is the real one. Git doesn’t do this.
No a blockchain is a chain of blocks. Its an append only datastructure that provides a cryptographically verifiable history. Proof-of-work is what allows for public concensus in crypto currencies like bitcoin, where as git uses signed blocks to identify different chains.
Git doesn’t sign commits, at least not cryptographically. I can download the Linux git repo and add whatever commits I like to it. I can even create my own commits under Torvalds’ name and email if I’d like, or rewrite all his commits under my own name.
It’s highly unlikely I can fool anyone it’s the real deal though. They will just download the kernel from the official repo instead.
Yeah, it does...
If you barely know shit about git why wouldnt you at least try googleing before posting??
It’s a bonus feature used by almost no one. I’ve never encountered a git repo which signs its commits.
The linux kernel, which git was created for, uses signed commits...
That's one definition of blockchain. Since the solution to the Byzantine Generals' problem in Bitcoin is done by Proof of Work it can't be said to be a part of the blockchain definition since there are many (most?) blockchains that don't use PoW. Some companies peddling "blockchain solutions" even use central authorities.
So, with "blockchain" just being a chain of cryptographically verified blocks then git indeed fulfills that definition.
How would that work?
I think parent is referring to Merkle trees.